diff --git a/html.h b/html.h
index c490655..2a9a431 100644
--- a/html.h
+++ b/html.h
@@ -8,6 +8,8 @@
 #include <openssl/ssl.h>
 #endif				/* USE_SSL */
 
+#include <time.h>
+
 #define StrUFgets(f) StrISgets((f)->stream)
 #define StrmyUFgets(f) StrmyISgets((f)->stream)
 #define UFgetc(f) ISgetc((f)->stream)